calendar-automation
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Clockwise Gave Meetings a Curfew - Then Time Ran Out
The calendar assistant moved 23 million meetings and made 8 million hours of room for deep work. Now that its team has joined Salesforce and the service is gone, its best ideas - and its sharpest limits - are worth a proper postmortem.
Reclaim Runs the Calendar. You Keep the Week.
The AI scheduler moves focus blocks, habits, tasks and meetings as the week changes. It is useful precisely because it meddles - and that is also the part you need to trust.
Blockit AI
Blockit AI is a San Francisco startup building an AI scheduling agent that runs your calendar for you. You cc it on an email or ping it in Slack, and it books, reschedules, and negotiates meetings autonomously - learning which meetings are movable and which are not. When two Blockit users need to meet, their agents talk to each other directly, skipping the human back-and-forth. Founded by former Sequoia partner Kais Khimji and calendar veteran John Han, the company raised a $5M seed round led by Sequoia in January 2026 and says it has coordinated more than 100,000 meetings across 200+ companies.
Kais Khimji
Kais Khimji is the co-founder and CEO of Blockit AI, an autonomous calendar-scheduling agent that negotiates meeting times over email and Slack. A former six-year partner at Sequoia Capital and Harvard alum, he revived a student-era idea about why calendars don't talk to each other, raised a $5M seed led by Pat Grady at Sequoia, and now serves more than 200 companies including Brex, Together.ai, Rogo, a16z, Accel, and Index.